Showing structure for (1r,3's,3ar,5ar,6r,7s,9ar,9br)-7-[(s)-furan-3-yl({[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy})methyl]-1-hydroxy-1,3,3,5a,7,9b-hexamethyl-5-oxo-tetrahydro-3ah-spiro[naphtho[1,2-c]furan-6,2'-oxirane]-3'-carboxylic acid